Machine for rolling finger-rings.



H. HENRICH.

MACHINE FOR ROLLING FINGER RINGS.

APPLICATION FILED JANJI, 1913. 1 094 145 Patented Apr. 21,191 L 4 SHEETS-SHEET 1.

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COLUMBIA' PLANOGRAPH C0..WASH|NGTON, D. c.

H. HENRIGH. MACHINE FOR ROLLING FINGER RINGS. APPLIOATION FILED JAN. 11,1913.

1 ,094,1 45. Patented Apr. 21, 191 1 4 SHEETSSHEET 2.

COLUMBIA PLANOGRAPH co., WASHINGTON. D4 c.

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H. HENRICH.

MACHINE FOR ROLLING FINGER RINGS.

APPLICATION FILED JAN.11, 1913. 1 094 145 Patented Apr. 21, 1Q14.-

4 SHEETS-$113131 3.

W Aw w if who a COLUMBIA PLANOGRAPH CO.,WASHINGTON, u c.

H. HEINRICH.

MACHINE FOR ROLLING FINGER RINGS. APPLICATION FILED JAILll, 1913.

Patented Apr. 21, 1914.

4 SHEETSSHEET 4.

COLUMBIA PLANOGRAPH co, WASHINGTON. D. C.

HENBY HENRICI-I,

OF NEW YORK, N. Y.

MACHINE FOB ROLLING FINGER-RINGS.

' To all whom it may concern Be it known that I, HENRY HENRIGH, a citizen of the United States, residing in New York, in the State of New York, have invented certain new and useful Improvements in Machines for Rolling Finger- Rings, of which the following is a specification.

The object of the present invention is to provide a machine for rolling finger-rings, in which the necessary power for properly shaping the metal is capable of being sensitively controlled and advantageously applied by the operator.

The invention comprises the combination of a ring-forming roller and mandrel, and auxiliary rollers, and means for moving these parts so as to bring to bear upon the ring held therebetween the ring-rolling forces under a high degree of control.

In the accompanying drawings, Figure 1 is a front-elevation of a machine embodying the invention, Fig. 2 is a top view of the same, Fig. 3 is a vertical transverse section on line 33 Fig. 2, Fig. 4 is a vertical longitudinal section on line 44 Fig. 2, and Fig. 5 is a horizontal section 011 line 55 Fig. 4.

Similar reference numerals indicate corre sponding parts in the several figures.

The table 10 of the machine may be supported on legs (not shown) of any suitable.

height. To the table is secured by suitable means such as bolts 11, an upright standard 12, having vertical guideways 13, in. which is guided a sliding carriage 14, carrying the ring-forming roller 46. The carriage 14 is provided at its lower part, at opposite ends, with two screw-threaded vertical sockets 15, 16, in which enter from below two operating-screws 17, 18. Screw 18 is journaled at its shank below the table in a removable bearing-plate 20 engaging the shank 21. Screw 17 is similarly supported. Between them, the screws support the carriage 14 in its standard 12. For operating the screws for raising and lowering the carriage, screw 17 is provided below the table with a pinion 22, and screw 18 with a similar pinion 23. Both pinions are engaged by a gear-Wheel 24 which is mounted rotatably on a short vertical shaft 25 secured at its upper end to the table 10. To the gear-wheel 24 is fixed, below the gear-wheel, a worm-gear 26, and below the worm-gear a bevel-pinion 27, said gear-wheel 24, worm-gear 26, and pinion 27,

Specification of Letters Patent.

Application filed January 11, 1913.

Patented Apr. 21, 1914.

Serial No. 741,403.

being rotatable together around the shaft 25. The pinion 27 is engaged by a bevelpinion 28 on a horizontal shaft 29 which is supported in a bracket 30 below the table. A handwheel 31 and crank-handle 32 are provided at the outer end of the shaft 29, so that the shaft and gearing may be readily operated by hand. Upon turning the handwheel 31 in one direction, the screws 17, 18, are simultaneously turned by the gearing in one direction and thereby lower the carriage 14, while when the hand-wheel 31 is operated in the other direction the screws lift the carriage. The screws are of like pitch and the movement of the carriage is uniform at both ends.

The carriage 14 is provided at its front portion with two posts 33, 34, adapted to receive between them a two-part bearing, the lower bearing-block 36 of which rests on the wall of the carriage. The upper bearingblock 38 is retained in place against lifting pressure by a top-plate 35 secured to the posts and carrying an adjusting-screw 37, having a lock-nut 39. Flanges at the sides of the bearing-blocks engage the posts and retain the blocks in place, therebetween. At its rear part the carriage is provided with a similar bearing 19, 40, secured between posts 41, 42, and limited in upward movement by the adjusting-screw 43 in top-plate 44. In these hearings of the carriage is supported a shaft 45 on which is mounted the ring forming roller 46. To the rear end of shaft 45 is keyed a gear 47, which meshes with a pinion 48 on a shaft 49, said shaft 49 carrying a gear 50 meshing with a pinion 51 on a shaft 52, to which shaft 52 is applied a belt-pulley 53. The shafts 49 and 52 are supported in a standard 54 secured to the table 10. Thus by the reduction-gearing,

the ring-forming roller is driven from the high-speed driving-shaft 52. The vertical movement of the carriage 14 is not sufficient during ordinary operation of the machine to withdraw the teeth of gear 47 from pinion 48, and the pinion continues to drive the ear. g At the front of the table is supported a mandrel-rest 56, which is guided on the table so as to be adjustable longitudinally of the mandrel, by means of guides 57, 58. A set-screw 59 passing upwardly through a longitudinal slot 99 in the table clamps the mandrel-rest 56 down to the table, and when released permits movement of the rest in its guides. For drawing the rest back and forth and thereby minutely adjusting the mandrel to proper position, an arm 60 is secured to one of the guides as 57 and earries an adjusting-screw 61 engaging the rest 56, which screw may be conveniently operated by hand.

At the upper part of the mandrel-rest 56 are mounted antifriction rollers 62, 63, shown in Fig; 4, and a corresponding pair of which the forward roller only, 76, is

shown, in Fig. 1. These rollers are spaced apart transversely so as to receive and support upon them the mandrel 64. They are longitudinally spaced so as to receive between them the enlarged middle portion 65 of the mandrel, thus retaining the mandrel against longitudinal displacement.

A bracket 67 is secured by screws 66 or otherwise to the mandrelrest 56, and extends rearwardly therefrom, and is provided with a horizontal bearing in which is located the mandrel-shaft 68. Said shaft 68 is provided at its forward end with a squared socket 77 to receive the squared shank 69 of the mandrel, and at its rear end beyond the bracket. the shaft 68'i's provided with a pinion 70, whichis in proximity with one side of a gear-wheel 71, which is supported on a shaft 72 in a bracket 7 3 fixed to the carriage 14. The gear 71 is actuated by a; pinion 74 also supported on the bracket and which is constantly inmesh with a gear 75 on the roller-shaft 45. lVhen the carriage 14; is in position so that the gear 71 is in engagement with pinion 70, the mandrel is driven. When raised so that the gear is -out of engagement with the pinion, rotation of the mandrel ceases.

The mandrelerest 56 supportsat opposite sides brackets 80, 81, secured thereto by bolts or other means, which brackets form at their horizontal portions guides 82, 83, of

' downwardly tapering cross-section, in which the slot 96 of guide 83 passes the upper end are supported slide-blocks 84, 85 of like tapering cross-section,'which carry at their inner ends, toward the mandrel, auxiliaryrollers 86, 87. Cover-plates 88, 89, secure the slide-blocks in the guides. Each guide is provided in its bottom with a longitudinal slot; 7 Through the slot 95 of guide 82 passes the upper end of a link 90, which is pivoted to the slide-block 84:, and through of-a link 91, which is pivoted to the slide- 7 block 85. At their lower ends the links are and its lower portion forms a handle for manual operation. A movement of the handdever 92 in one direction causes the auxiliary rollers to advance simultaneously and uniformly toward'the mandrel, while a these rollers at each instant of the rolling operation. The lever and links are detachable and may be substituted by others when worn, or for changing the leverage.

The mandrel-rest 56 is provided with a vertical bore 100, in which is located the connecting-rod 101 of a size-indicator, which indicator is adapted to show at any moment the size of the ring being worked. At the upper end the rod 101 carries a. finger 102, which projects forward into the ring 103 at that part of the same depending below the mandrel, and rests against the inside of the ring. The lower part of rod 101 passes through table 10 and below the same is connected to a lever 101 pivoted to the table. Against the opposite end of the lever bears a button 105 having its head above the table in convenient position for operation. To the face of the mandrel1'est is pivoted a. pointer106,1novable over av scale 107 adjustably supported on the mandrel-rest. The pointer is counter-balanced by a suitable adjustable weight 108 and is controlled and actuated by means of an arm i110 projecting forwardly from the rod 101 and contacting with the pointer, as shown in Fig. 1. A vertical slot 111 in the mandrel-rest permits sufficient vertical movement of the arm 110 to play the pointer over the scale. Thus by gravity of the parts the linger 102 rests in the ring being rolled and determines by the extent to which the inside of the ring depends below the mandrel, the size thereof, which is communicated by rod 101 and arm 110 to the pointer, thereby causing the same to rest at the corresponding point on the scale. The rotation of the ring during rolling has a tendency to draw the finger 102 sidewise, but upon depressing the button 105 and thus lifting the finger 102, and then releasing the button, the linger falls in true position and the size of the ringis accurately indicated on the scale.

The hand-wheel 31 and gearing 27, 28, give a comparatively rapid vertical movement of the carriage 141-. For exerting greater pressure than this mechanism will conveniently give, and for more delicately controlling the pressure, a separate low? speed operating means is provided, comprising the worm-wheel 26, with which meshes a worm 120 which is carried on a worm-shaft 121 provided at its outer end with an operating hand-wheel 122 and bandle 123. The worm-shaft is supported in an eccentric movable bearing comprising journal-blocks 124:, 125, secured to the underside of the table 10, and an eccentric bearing-box 126 rotatable through part of a rotation in said journals. WVhen the box is in one position of eccentricity the worm is in mesh with the worm-wheel, While when in another position of eccentricity the worm is completely out of mesh with the worm-wheel. An operating-handle 130 is attached to the box 126 and projects radially therefrom beyond the hand-wheel for convenient operation of the box from worm-free position when the handle is upright as seen in Fig. 1, to worm-engaging position when the handle is depressed, and vice versa. Stop-pins 131, 132, limit movementof the handle and thereby determine engagement and disengagement of the worm. The box 126 is tubular in form and is exposed between the journals 124, 125, to grasp of the operators hand, and may be directly turned thereby without use of the handle 180, affording thus a convenient means of operation for throwing the worm in and out of gear.

WVhen the machine is to be operated by the high-speed gears 27 28, through their handwheel31, the worm is first thrown out of connection with its worm-wheel. machine is to be operated at slow speed, no disengagement of any parts is required, as the small amount of friction oHe-red by the gears 27 and 28 and their shaft 29 which parts are incidentally operated, does not appreciably impede the operation.

The ring-blank to be rolled to a finger-ring is placed in posit-ion in the groove 140 of a mandrel, while the latter is out of the machine, and then both the ring-blank and mandrel are together inserted in the machine, with the squared shank of'the mandrel taking its posit-ion in the socket of the mandrel-shaft 67, and the mandrel resting on its antifriction rollers, and the ring depending below the mandrel, and the sizing-finger 102 being within the ring-blank, as shown in Fig. 4. The driving-gear being in operation, the carriage is now lowered by rotation of the high-speed hand-wheel 31 by the hand of the operator, until the mandrel commences rotation. The worm is then thrown into the worm-wheel and the descent of the carriage is continued by means of the hand-wheel 122 at low speed, thus bringing the ring-forming roller 16 into cooperation with the mandrel so as to roll the ring-blank between them. Simultaneously the lever 92 is operated so as to bring the auxiliary-rollers into engagement with the ring-blank. By continued movement of the hand-wheel 122 and lever 92, proper pressure of the ring-formingroller and of the auxiliary rollers is produced and exerted upon the ring-blank to form the ring. When the operation has continued until the ring is of the desired When the I size, as indicated by the pointer 106, the descent of the carriage is discontinued and the carriage is raised by means of the high-speed wheel 31, the worm being first thrown out of engagement. The gear 71 is withdrawn out of the pinion 70, motion of the mandrel thus ceases, and the mandrel with the rolled ring on it may be removed. Sufiicient play exists between the shank of the mandrel and its socket to permit its ready insertion and removal with the ring.

The ring-forming roller 46 is screwed on the threaded forward end of its shaft 4:5, and secured by a lock nut 150. It is thus readily removable for substituting another roller. The guides and locking-screw 57, 58, 59, of the mandrel-rest, enable the rest to be readily and accurately adjusted so as to bring the particular mandrel employed in juxtaposition to theringforming roller.

The machine is not confined to operation .in the manner described, namely by using in one rolling both the high-speed and the lowspeed mechanisms. Either mechanism may be used to the exclusion of the other; and any partof a single rolling operation may be carried on by either mechanism according to the requirements of the work being done.

One embodiment of the invention has been described, and it is obvious that changes may be made therein without departing from the spirit of the invention as set forth in the following claims.

I claim:

1. A ring-forming machine, comprising a mandrel, a ring-forming roller movable toward and from the mandrel, a carriage for said roller, a table, screws ournaled in said table and supporting said carriage, and extending below said table, and operating gearing below said table and connected with said screws.

2. A ring-forming machine, comprising a mandrel, a ring-forming roller movable toward and from the mandrel, a carriage for said roller, means for operating said roller during movement of said carriage mandreloperating gearing carried by said carriage, a mandrel-rest, a mandrel-shaft and mandrel-pinion carried by said rest, and means for moving said carriage so as to place said mandrel gearing into and out of mesh with said mandrel-pinion.

3. A. ring-forming machine, comprising a vertically-movable carriage, vertically-adjustable bearings carried by said carriage, one at each end of the same, a shaft in said bearings, a ringforming roller on said shaft beyond the carriage, mandrel-operating gearing carried by said carriage and connected with said shaft, 2. mandrel-rest outside of the carriage, and a mandrel-shaft and mandrel-pinion supported by said mandrel-rest and projecting into the path of said mandrel gearing, said carriage being &

movable to carry said gearing into and out of mesh with said mandrel-pinion.

4:. A ring-forming machine, comprising a mandrel, a vertically-movable carriage, a ring-forming roller movable toward and from the mandrel supported by said carriage, spaced operating-screws one at each end of said carriage, pinions secured to said screws, a common gear for operating said pinions, and means for operating said gear.

5. A ring-forming machine, comprising a mandrel, a vertically-movable carriage, a ring-forming roller movable toward and from the mandrel supported by said carriage, spaced operating screws one at each end of said carriage, pinions secured to said screws, a common gear for operating both pinions, a worm-wheel rotatable with said gear, and a worm for operating said wormwheel.

6. A ring-forming machine, comprising a mandrel, a vertically-movable carriage, a ring-forming roller movable toward and from the mandrel supported by said carriage, spaced operating screws one at each end of said carriage, pinions secured to said screws, a common gear for operating both pinions, a worm-wheel rotatable with the gear, a worm for operating said wormwheel, 'and means for throwing the worm in and out of mesh with said worm-wheel.

7. A ring-forming machine,comprising a mandrel, a vertically movable carriage, a ring-forming roller movable toward and from the mandrel supported by said carriage, a mandrel-rest, a mandrel-shaft and mandrel-pinion supported by said mandrel- Irest, stationarily-supported operating-gearing, gearing carried by said carriage and adapted on theone hand to engage said operating-gearing and on the other hand to {engage the mandrel-pinion, and means for amoving said carriage so as to place said gearing carried thereby into and out of mesh with the mandrel-pinion.

8. In a ring-forming machine, the com- ;bination, with a table, of a ring-forming iroller supported above the same, a stationiary mandrel-rest supported on said table, iancl means for adjusting said mandrel-rest ,011 said table into juxtaposition to said firoller.

9. In a ring-forming machine, the comibination, with a mandrel-rest, of a scale supported thereby, a pointer pivoted to said rest and movable over the scale, said rest beging provided with a vertical bore and a jslot communicating therewith, a connectinglrod having at its upper end above said fslot a finger adapted to engage the inside f a ring supported in rolling position, said fconnecting-rod having an arm projecting through said slot and contacting with said pointer, and an operating lever and button connected with said connecting-rod and "adapted to lift the finger from the ring.

In testimony, that I claim the foregoing as my invention, I have signed my name in the presence of two subscribing witnesses.

HEN RY HENRICH.

lVitnesses JOHN MURTAGH. GRACE Lowe.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

